On the phenomenon of emergent spacetimes: An instruction guide for experimental cosmology

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dc.creatorWeinfurtner, Silke
dc.creatorVisser, Matt
dc.creatorJain, Piyush
dc.creatorGardiner, C. W.
dc.date2008-04-08
dc.date.accessioned2026-07-07T13:02:59Z
dc.date.available2026-07-07T13:02:59Z
dc.descriptionWe present a toy model where spacetime is emergent from a more fundamental microscopic system, and investigate the gray area interpolating between the collective and free-particle regimes. For a period of rapid exponential growth in the analogue universe, we argue that the intermediate regime is best described by a coloured potpourri of geometries -- a "rainbow geometry". This can be viewed as an alternative approach towards understanding quantum field theories in the presence of Lorentz-symmetry breaking at ultraviolet scales. Firstly, it is pointed out that cosmological particle production in our emergent FRW-type analogue universe, when compared to conventional semi-classical quantum gravity, is only temporarily robust against model-specific deviations from Lorentz invariance. Secondly, it is possible to carry out a straightforward quantitative analysis to estimate a suitable parameter regime for experimental (analogue) cosmology.
dc.description19 pages; Based on a talk at the conference: From Quantum to Emergent Gravity: Theory and Phenomenology, June 11-15 2007, Trieste, Italy
dc.identifierhttps://arxiv.org/abs/0804.1346
dc.identifierhttp://arxiv.org/abs/0804.1346
dc.identifierPoSQG-Ph:044,2007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/226640
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleOn the phenomenon of emergent spacetimes: An instruction guide for experimental cosmology
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